Finding the Fourth Proportional to 79,911.21, 119,721.45 and 46,530.08
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Solution
The fourth proportional to 79,911.21, 119,721.45 and 46,530.08 is: 69,710.47
Step by Step Solution
- Step 1: Write the proportion equation
79,911.21 : 119,721.45 = 46,530.08 : x - Step 2: Convert to fraction form
79,911.21/119,721.45 = 46,530.08/x - Step 3: Cross multiply
79,911.21x = 119,721.45 × 46,530.08 - Step 4: Simplify right side
79,911.21x = 5,570,648,047.61 - Step 5: Solve for x
x = 5,570,648,047.61/79,911.21 - Step 6: Final answer
x = 69,710.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.